/Engine/Plugins/Runtime/CommonUI/Source/CommonUI/Public/CommonButtonBase.h
Internal method to allow the selected state to be set regardless of selectability or toggleability
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Meta=(BlueprintProtected="true"), Category="Common Button") void SetSelectedInternal ( bool bInSelected, bool bAllowSound, bool bBroadcast )